CN1190694C - LCD device and method of manuficture thereof - Google Patents
LCD device and method of manuficture thereof Download PDFInfo
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- CN1190694C CN1190694C CNB00800014XA CN00800014A CN1190694C CN 1190694 C CN1190694 C CN 1190694C CN B00800014X A CNB00800014X A CN B00800014XA CN 00800014 A CN00800014 A CN 00800014A CN 1190694 C CN1190694 C CN 1190694C
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0102—Constructional details, not otherwise provided for in this subclass
- G02F1/0107—Gaskets, spacers or sealing of cells; Filling and closing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
Abstract
An LCD device (20) includes a liquid-crystal layer (21) consisting of polymer-dispersed liquid crystal or polymer network liquid crystal enclosed in a gap between two transparent substrates (1, 2) joined by a sealant (3). An injection hole (5) is provided in one side (3a) of the sealant (3) between the two substrates (1, 2). Barriers (16) are provided near the ends of the side in order to stop liquid crystal from entering terminal areas (14) when the liquid crystal is charged in the gap through the injection hole (5). The adhesion of at least one of the two substrates (1, 2) to the barrier (16) is weaker than the adhesion of the sealant (3) to the substrate. As a result, the terminal areas (14) are shielded from liquid crystal, and damage is prevented when the substrates (1, 2) are cut, resulting in increased production yield.
Description
The present invention relates to liquid crystal layer and use polymer-dispersed liquid crystal or polymer network liquid crystal, do not need the Liquid crystal disply device and its preparation method of polarized light piece.
As can low-power consumption, slim, lightweight display device, people are always in the exploitation of carrying out various liquid crystal indicators (display panel) energetically.Recently, further lightweight very strong with requirement slimming, the requirement of low priceization is also very strong.
As slimming that realizes liquid crystal indicator and lightweight means, can enumerate and make the substrate slimming that to use this is a kind of.Owing in liquid crystal indicator, generally use glass, be to realize the slimming of liquid crystal indicator and lightweight the most effectively means so make this glass slimming as substrate.
In addition, even if in order also to obtain good display quality in the outdoor of fine day, people are also developing reflective LCD device energetically.Reflective LCD device owing to utilizing outer light to show and not using the big backlight of power consumption, is pretended to realizing power consumption liquid crystal indicator still less, is also developing energetically.
Rough segmentation is got up, and liquid crystal indicator has liquid crystal indicator that uses polarized light piece and the liquid crystal indicator that does not use polarized light piece fully.
Within the kind of not using polarized light piece, main has two kinds: use the liquid crystal indicator of the liquid crystal layer that constitutes by the host and guest's formula liquid crystal that contains dyestuff at liquid crystal and use by dispersed liquid crystal in the polymkeric substance polymer dispersed formula liquid crystal or in the gap of network polymer, have the liquid crystal indicator of the liquid crystal layer that the polymer network formula liquid crystal of liquid crystal constitutes.
These two kinds of reflective LCD devices make liquid crystal layer self be varied to pellucidity and opaque state shows owing to apply voltage according to whether to liquid crystal layer, thus do not need to use polarized light piece, thereby the demonstration that can become clear.
Secondly, be the problem of low priceization, people are making great efforts with the price that reduces material itself in a large number or are saving materials used etc.
In employed member, can enumerate liquid crystal as the representative of the maximum member of waste, in order to save this liquid crystal material, people have proposed various schemes.As its example, disclosed scheme in the special public clear 58-37527 communique of Jap.P. is arranged.
With Fig. 5 its summary is described here.This liquid crystal indicator as shown in Figure 5, is made a plurality of being configured under the form of strip integraty ground.Each liquid crystal indicator 10, by two transparent glass substrates 1,2 (in the drawings, because it is superimposed together, so look like like one) constitute, these two glass substrates 1,2, with the sealing gasket on the part that is arranged on each liquid crystal indicator 10 3, be pasted together in the mode that makes it to form constant space 4.
On the middle body of shared one side of this each sealing gasket 3 (being the limit of downside in the drawings) 3a, the filling orifice 5 that is used for injecting liquid crystal material in the space 4 of two substrates 1,2 is set.In addition, the barrier 6 in that this two end portions formation of 3a is on one side formed by same sealant makes the sealing gasket 3 of adjacent liquid crystal indicator 10 is connected together.
This barrier 6 plays a part such: when injecting liquid crystal material in each space 4 of a plurality of liquid crystal indicators 10 that form to integraty ground, prevent that liquid crystal material from invading between the sealing gasket 3 of adjacent liquid crystal indicator 10.
Therefore, because liquid crystal material is only advanced with the 3a front, limit that has been provided with filling orifice 5 in the space 4 that is fenced up by the sealing gasket 3 of each liquid crystal indicator 10, so liquid crystal material is invaded in unwanted zone hardly, thereby can save liquid crystal material to greatest extent.
And, owing to, just can when forming sealing gasket 3, form barrier 6 simultaneously only to the more moving brains of the shape of sealing gasket 3, must not append special operation during fabrication so can save liquid crystal material, very big for the contribution of the low priceization of liquid crystal indicator.
Inject liquid crystal material in the space 4 of each liquid crystal indicator 10 after, the filling orifice 5 of each sealing gasket 3 of sealant shutoff that comes with not drawing forms the liquid crystal layer between two substrates 1,2 that are enclosed in each liquid crystal indicator 10.
At last, adopt in the position of representing with cut-out preset lines 18 and cut off the way of two substrates 1,2, separate each liquid crystal indicator 10, finish each liquid crystal indicator 10.
In addition, as mentioned above, because the demonstration of not using the reflective LCD device class of polarized light piece to become clear, old friends develop energetically, the reflective LCD device that it is main, reflective LCD device that uses host and guest's formula liquid crystal in liquid crystal layer and the reflective LCD device that uses polymer dispersed formula liquid crystal or polymer network formula liquid crystal are arranged.
For example, under the situation that will make the display device of using polymer dispersed formula liquid crystal or polymer network formula liquid crystal, as with Fig. 5 explanation, in the space 4 that between two substrates 1,2, forms with sealing gasket 3, inject and sealing is gone up after the liquid crystal material that the potpourri by single polymers and liquid crystal constitutes, so that carrying out the polymerization materialization of polymerization, the single polymers in the liquid crystal material is made into the liquid crystal layer that forms by polymer dispersed formula liquid crystal or polymer network formula liquid crystal by irradiation ultraviolet radiation on whole.
Yet, general liquid crystal indicator, as shown in Figure 6, for electrode and the external circuit that comes that do not draw that forms respectively on the inner face in opposite directions of two substrates 1,2 is electrically connected, the outside of the sealing gasket 3 at least one side's who is provided with at two substrates 1,2 the inner face has formed the terminal area 14 of terminal.
Then, when cutting off these two substrates, 1,2 each liquid crystal indicators 10 of separation, expose, must on different positions, cut off two substrates 1,2 in order to make each terminal area 14.
In other words, among Fig. 6 at the 1st substrate 1 of upside, cutting off preset lines 7 places the 1st cuts off, the 2nd substrate 2 of downside then every to cut off preset lines 8,8 places in the 2nd of 2 places and cut off, when being separated into each liquid crystal indicator 10, can terminal area 14 be exposed by removing the 2nd substrate 2 with terminal area 14 part in opposite directions of the substrate of substrate 1.
But, owing to used and formed barrier 6 with sealing gasket 3 identical materials, so the terminal area 14 of the inner face of the 1st substrate 1 and in opposite directions the inner face of the 2nd substrate 2 with it, the barrier 6 that has been formed by sealant is pasted together, cutting off the 1st, the 2nd substrate at 1,2 o'clock, must be with peel this barrier 6 off greater than the power of its bonding force.
Because sealant just had very strong bonding force originally, so before can removing the part of not wanting of the 2nd substrate 2 by this cut-out, in many cases, the part in opposite directions of the terminal area 14 of the 1st substrate 1 or the 2nd substrate 2 will be damaged.
The damaged liquid crystal indicator 10 of terminal area 14 yes unacceptable product, the part in opposite directions of terminal area 14 is suffered damaged liquid crystal indicator, because this suffers damaged part to remain in the terminal area top, also is unacceptable product certainly.
As mentioned above, as can be known when for slim lightweight and when making the continuous attenuation of thickness of substrate, this tendency highly significant is being under the situation of the glass about 0.5mm as the substrate used thickness, nearly all liquid crystal indicator becomes for this reason and to be unacceptable product.
In addition, under the situation of the liquid crystal indicator of limit said polymer dispersed formula liquid crystal or polymer network formula liquid crystal, exist following problems before use.
In other words, under the situation that barrier shown in Figure 66 is not set, in the space of each liquid crystal indicator 10, during liquid crystal material that injection is made of the potpourri of single polymers and liquid crystal, because capillarity, liquid crystal material is also invaded in the gap between each sealing gasket 3, also is attached on the terminal area 14.Then, when keep intact when going up irradiation ultraviolet radiation for whole, the single polymers in the liquid crystal material on this terminal area 14 also will carry out polyreaction and the polymerization materialization.
Therefore, even if after being separated into each liquid crystal indicator 10, on the surface of terminal area 14, also can adhere to the liquid crystal material of polymerization materialization in the same old way.
Because the liquid crystal material of polymerization materialization has high insulativity, thus carry out on the terminal area 14 and external circuit between to be electrically connected be difficult.For this reason, just must or more moving special brains make that not to the liquid crystal material irradiation ultraviolet radiation that is attached on the terminal area 14 or importing is used for removing fully the special operation of the liquid crystal material of polymerization materialization, still, no matter which side will fully all be difficult.
The present invention proposes for solving such problem, purpose is to prevent when making liquid crystal indicator, liquid crystal material is invaded to unwanted part, the use amount of thrifty liquid crystal material, the liquid crystal material that particularly prevents polymer dispersed formula liquid crystal or polymer network formula liquid crystal is attached on the terminal area of substrate, and will make and can not make the phenomenon of substrate breakage and so on when separating each liquid crystal indicator cutting off substrate, thereby improve fabrication yield significantly.
To achieve these goals, the invention provides Liquid crystal disply device and its preparation method as following formation.
According to liquid crystal indicator of the present invention, possess: two transparent substrates; These two substrates are engaged with interstitial sealing gasket between this substrate; Being sealing into the liquid crystal layer that is made of polymer dispersed formula liquid crystal or polymer network formula liquid crystal in this space, is that the filling orifice that is used for injecting the liquid crystal material that forms above-mentioned liquid crystal layer is set at above-mentioned sealant.
It is characterized in that: near the two end portions on the limit that the sealant filling orifice is set of the sealing gasket between above-mentioned two substrates, be arranged on and stop its barrier that spreads into when injecting above-mentioned liquid crystal material in the space of this filling orifice between two substrates, the bonding force between at least one side of this barrier and above-mentioned two substrates than the bonding force between above-mentioned sealant and this substrate a little less than.
In addition, the outside of the above-mentioned sealing gasket at least one side's who is positioned at above-mentioned two substrates inner face, be provided with and formed under the situation that is used for making the electrode that forms and the terminal area of the outside terminal that is electrically connected on this substrate, above-mentioned barrier is the barrier that stops this liquid crystal material to spread in terminal area when injecting above-mentioned liquid crystal material in by the space of above-mentioned filling orifice between two substrates.
Material a little less than above-mentioned each barrier can use bonding force such as electrocondution slurry etc. than sealing gasket constitutes.
Perhaps, also can adopt between at least one side of above-mentioned each barrier and above-mentioned two substrates, the way in the middle layer that is made of transparent organic material is set, weaken the bonding force of above-mentioned barrier this substrate.
Liquid crystal indicator of the present invention, owing to be provided with when injecting liquid crystal material in the space that between two substrates, forms by sealing gasket, the barrier that stops liquid crystal material to spread into to the outer peripheral portion of sealing gasket will be so will reduce the waste of liquid crystal material significantly.In addition, can also prevent, and become by ultraviolet irradiation and to be dielectric film, make being electrically connected between the external circuit become and be difficult to carry out because of liquid crystal material is attached on the terminal area of substrate.
And, because this barrier is different with existing barrier, and the bonding force between the substrate than the bonding force between sealing gasket and the substrate a little less than, so can on same substrate, form after a plurality of liquid crystal indicators, when being separated into each liquid crystal indicator, prevent the underproof generation that the breakage because of substrate causes, thereby improve yield rate significantly.
According to the manufacture method of liquid crystal indicator of the present invention, have following operation:
(1) on a side's of two transparent substrates that formed electrode on the inner face in opposite directions respectively inner face, forms the operation of the sealing gasket that is used for enclosing liquid crystal layer in the mode of the filling orifice of remaining liquid crystal material;
(2) on a side of above-mentioned two substrates or the opposing party's inner face, with the conductive material of bonding force a little less than than above-mentioned sealing gasket, the outside at above-mentioned sealing gasket, the coupling arrangement that formation is electrically connected to the electrode that forms on two substrates, with when injecting liquid crystal material, stop the operation of the barrier that this liquid crystal material spreads in the part that is provided with above-mentioned coupling arrangement by the filling orifice of above-mentioned sealing gasket;
(3) two substrates are engaged, interstitial operation between this substrate;
(4), in above-mentioned space, injected after the liquid crystal material that the potpourri by liquid crystal and single polymers constitutes the operation of the above-mentioned filling orifice of shutoff by the filling orifice that is arranged on the above-mentioned sealing gasket;
(5) by to above-mentioned liquid crystal material irradiation ultraviolet radiation with above-mentioned single polymers polymerization materialization, form the operation of the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal.
Above-mentioned coupling arrangement and barrier can form by the electrocondution slurry printing of using silver paste or charcoal slurry etc.
In addition, the manufacture method of liquid crystal indicator of the present invention also can have following A each operation to F.
A. in order to make a plurality of liquid crystal indicators simultaneously, on a side's of two transparent substrates inner face, form the operation of the sealing gasket that each liquid crystal indicator of being used for enclosing respectively liquid crystal layer uses in the mode of the filling orifice of remaining liquid crystal material;
B. near the position corresponding two ends on a side of above-mentioned two substrates or the opposing party's inner face and the limit filling orifice that is provided with above-mentioned each sealing gasket, with the material of bonding force a little less than than above-mentioned sealing gasket, be formed on when above-mentioned filling orifice injects liquid crystal material, the barrier that stops this liquid crystal material between adjacent liquid crystal indicator, to spread into, the operation that the barrier that makes adjacent liquid crystal indicator use is continuous;
Above-mentioned two substrates are engaged, the operation in the space that each liquid crystal indicator of formation is used between this substrate;
D. the filling orifice on being arranged on above-mentioned sealing gasket has injected in above-mentioned space after the liquid crystal material that the potpourri by liquid crystal and single polymers constitutes, the operation of the above-mentioned filling orifice of shutoff;
E. by to above-mentioned liquid crystal material irradiation ultraviolet radiation with above-mentioned single polymers polymerization materialization, form the operation of the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal;
F. cut off above-mentioned two substrates, the operation of separating each liquid crystal indicator at the position that has formed above-mentioned barrier.
Also can change the operation of above-mentioned B, on a side of above-mentioned two substrates or the opposing party's inner face, the middle layer that sandwich is made of transparent organic material forms above-mentioned coupling arrangement and barrier.
In addition, the outside of the above-mentioned sealing gasket on inner face at least one side of above-mentioned two substrates, be provided with and formed under the situation that is used for making the electrode that on this substrate, forms and the terminal area of the outside terminal that is electrically connected, as long as make the operation change of above-mentioned B. following.
In other words, be formed on when on a side of above-mentioned two substrates or the opposing party's inner face, injecting liquid crystal material with the material of bonding force a little less than by the filling orifice of above-mentioned each sealing gasket than above-mentioned sealing gasket, the barrier that makes adjacent liquid crystal indicator use forms the barrier that stops this liquid crystal material to spread into with coupling together in above-mentioned terminal area, the middle layer that sandwich is made of transparent organic material forms the barrier that stops this liquid crystal material to spread in above-mentioned terminal area.
In the operation of above-mentioned B. or changed in its a part of operation, can form above-mentioned barrier by the electrocondution slurry printing of using silver paste or charcoal slurry etc.This external sandwich is formed under the situation of above-mentioned barrier by the ground, middle layer that transparent organic material constitutes, and barrier itself also can be used with the sealing gasket identical materials and form.
The planimetric map of Fig. 1 shows an embodiment of liquid crystal indicator of the present invention.
Fig. 2 is the local amplification profile along the A-A line of Fig. 1.
The planimetric map of Fig. 3 shows the state in the manufacturing process of the manufacture method that is used for illustrating liquid crystal indicator of the present invention.
Fig. 4 is the amplification front elevation of the adjacent part of 2 liquid crystal indicators among Fig. 3.
The planimetric map of Fig. 5 shows the state in the manufacturing process of existing liquid crystal indicator.
The planimetric map of Fig. 6 shows another example.
Below, the preferred embodiment to Liquid crystal disply device and its preparation method of the present invention describes in conjunction with the accompanying drawings.
[liquid crystal indicator: Fig. 1 and Fig. 2]
The planimetric map of Fig. 1 shows an embodiment of liquid crystal indicator of the present invention, and Fig. 2 is the local amplification profile along the A-A line of Fig. 1.In these figure, for in the corresponding part of conventional example shown in Fig. 5 and Fig. 6, give same label.
These liquid crystal indicators 20 as depicted in figs. 1 and 2, possess: two transparent substrate the 1st substrates 1 and the 2nd substrate 2; Make these two substrates 1,2 engage (stickup) with at 1,2 interstitial sealing gaskets 3 of substrate; By being sealing into the liquid crystal layer 21 that polymer dispersed formula liquid crystal in this space or polymer network formula liquid crystal constitute.
In addition, because two substrates the 1, the 2nd are transparent, thus in Fig. 1, also all fully can be visible in sealing gasket 3 grades of the back side one side setting of the 1st substrate 1 of side nearby, so represent with solid line.
On sealing gasket 3, be provided with the filling orifice 5 that is used for injecting the liquid crystal material that forms liquid crystal layer 21, after having injected liquid crystal material, carry out shutoff with blocking agent 9.
In addition, near the two end portions of the limit 3a that is provided with filling orifice 5 of the sealing gasket 3 of 1,2 of two substrates, make it barrier 10 to be set like that along the trim line of substrate 1,2, be used for stoping when injecting liquid crystal material in by the gap of filling orifice 5 between two substrates, this liquid crystal material spreads into to the outer peripheral portion of sealing pad 3.Bonding force between at least one side of this barrier 16 and two substrates 1,2 (in this example, being the 2nd substrate 2) is a little less than the bonding force between sealing gasket 3 and this substrate 2.
The 1st substrate 1 and the 2nd substrate 2, for satisfying the requirement of thin lightization, used thickness is the glass plate of 0.3mm.Sealing gasket 3 as being used for the gasket material of thickness of standard solution crystal layer 5, by carrying out silk screen process, forms the sealant material of having sneaked into glass fibre.
Barrier 16, the employing carbon pastes a little less than silk screen process bonding force on the 1st substrate 1 is than sealant or the way formation of silver paste.
As the liquid crystal material that is used for forming liquid crystal layer 21, use the potpourri of liquid crystal and single polymers, and in by the filling orifice 5 injection spaces that are arranged on the sealant and after having carried out shutoff, go up irradiation ultraviolet radiation for whole to this liquid crystal indicator 20, make single polymers polymerization reaction take place of liquid crystal material and the polymerization materialization, form the liquid crystal layer 21 that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal.
In addition, on the inner face in opposite directions of the 1st substrate 1 and the 2nd substrate 2, as shown in Figure 2, form the 1st electrode 11 and the 2nd electrode 12 that the nesa coating by tin indium oxide (ITO) etc. constitutes respectively.
In the present embodiment, the 1st electrode 11 that on the inner face of the 1st substrate 1, forms, as shown in Figure 1, be to be used for the multistage electrode of display digit or letter and wiring thereof to use electrode, the 2nd electrode 12 that on the inner face of the 2nd substrate 2, forms to be and each segment electrode in opposite directions common electrode all.
At least one side of above-mentioned two substrates 1,2, in the present embodiment, the outside of the sealing gasket 3 on the inner face of the 1st substrate 1 (being the left and right sides in Fig. 1), be provided with terminal area 14, formed on this terminal area 14 and be used for making a plurality of terminals 13 that are electrically connected at the 1st electrode 11 that forms on the substrate 1 and external circuit and be used for making the 2nd electrode 12 of formation on the 2nd substrate 2 and the terminal 13a that external circuit is electrically connected.
Then, constitute the middle wiring electrode that does not draw and that always extends to terminal area 14 by sealing gasket 3 that exists respectively of each segment electrode of the 1st electrode 11, individually be connected on each terminal 13 of terminal area 14.In addition, the wiring of the 2nd electrode 12, extends to till the terminal 13a position in opposite directions with terminal area 14 also by between sealing gasket 3 and the 2nd substrate 2 with electrode always.Then, use between electrode and the terminal 13a, the connecting elements (coupling arrangement) 15 that is made of conductive material is set, the 2nd electrode 12 and terminal 13a are electrically connected in the wiring of the 2nd electrode 12.
In the present embodiment,, all use charcoal slurry or silver paste, on the 1st substrate 1, form simultaneously by silk screen process no matter be this connecting elements 15 and barrier 16.
In this case, barrier 16 plays a part such: when injecting liquid crystal material by filling orifice 5 in the space of 1,2 of two substrates, stop this liquid crystal material to spread in the position that is provided with connecting elements 15 of the terminal area 14 and the 1st of the 1st substrate 1, the 2nd substrate 1,2.
Can also form connecting elements 15 and barrier 16 with other material in addition, in this case, connecting elements 15 must form with conductive material at least, and barrier 16 also can form with the insulativity material.So, even if it is own to form barrier 16 without bonding force than sealing gasket 3 weak materials, adopt at least and the 2nd substrate 2 between the way in the middle layer that is made of the transparent organic material a little less than the bonding force is set, also can weaken the bonding force of 16 pairs the 2nd substrates 2 of barrier.Under these circumstances, also can use sealant, form barrier 16 simultaneously with sealing gasket 3.
(manufacture method of liquid crystal indicator: Fig. 1 is to Fig. 4)
Secondly, the embodiment of the manufacture method of liquid crystal indicator of the present invention is described to Fig. 4 with Fig. 1.
The planimetric map of Fig. 3 shows with same substrate and makes state in the manufacturing process under the situation of a plurality of liquid crystal indicators simultaneously, and Fig. 4 is the amplification front elevation of the adjacent part of 2 liquid crystal indicators.In these figure, for simplicity, for Fig. 1 and the corresponding part of Fig. 2, give same label and omit its explanation.
If employing present embodiment, at first as mentioned above, preparation has formed the 1st transparent substrate 1 and the 2nd substrate 2 of electrode respectively on inner face in opposite directions, one for example on the inner face of the 2nd substrate 2 therein, form the sealing gasket 3 of the liquid crystal layer 21 that is used for enclosing each liquid crystal indicator 20 in the mode of the filling orifice 5 of remaining liquid crystal material.The sealant that sealing pad 3 usefulness bonding forces are strong forms.At this moment, filling orifice 5 is arranged along one side of the downside in Fig. 3 of two substrates 1,2.
Then, at two substrates 1, a side or the opposing party of 2, be in this example on the inner face of the 1st substrate 1, the outside at sealing gasket 3, make the connecting elements (coupling arrangement) 15 that is electrically connected at terminal illustrated in figures 1 and 2 (electrode) 13a of the 2nd electrode 12 that forms on the 2nd substrate 2 and formation on the 1st substrate 1 with bonding force than sealing gasket 3 weak conductive materials formation, when injecting liquid crystal materials with filling orifice shown in Figure 35 by sealing gasket 3, the barrier that stops this liquid crystal material in the position that is provided with the connecting elements 15 that each liquid crystal indicator uses and each terminal area 14, to spread into.
This connecting elements 15 and barrier 16 use charcoal slurry or silver paste as electrocondution slurry, form in the 1st substrate 1 top simultaneously with the silk screen process printing respectively.Each barrier 16 is printed as and makes that the barrier 16 of adjacent liquid crystal indicator 20 is continuous.
Then, make the 1st substrate 1 and the 2nd substrate 2 ground that coincide overlapping, heating in the time of pressurization, the barrier 16 and connecting elements 15 sclerosis that make the sealing gasket 3 that constitutes by encapsulant and constitute by charcoal slurry or silver paste.
Thus, sandwich sealing gasket 3 makes the 1st substrate 1 and the 2nd substrate 2 engage (being pasted together), forms space 41,2 of this substrates.
Then, make to become between two substrates 1,2 and be vacuum, make the liquid crystal utensil of having put into the liquid crystal material 22 that constitutes by liquid crystal and single polymers, respectively with the sealing gasket 3 that is arranged on each liquid crystal indicator 20 usefulness on filling orifice 5 in succession, and in each space, injected after the liquid crystal material 22, with each filling orifice 5 of blocking agent shown in Figure 19 shutoff.
Then, also adopt whole last irradiation ultraviolet radiation to this substrate 1,2, liquid crystal material 22 irradiation ultraviolet radiations in each space 4 are so that way that should list polymers polymerization materialization forms the liquid crystal layer 21 (referring to Fig. 2) that is made of polymer dispersed formula liquid crystal or polymer network formula liquid crystal.
At last, cut off the 1st, the 2nd substrate 1,2, each liquid crystal indicator 20 is separated at the position that has formed barrier 16.In other words, adopt the 1st cut-out preset lines 7 places that dot in Fig. 3 to cut off the 1st substrate 1, cut off preset lines 8,8 places the 2nd and cut off the 2nd substrate 2, the way that liquid crystal indicator 20 is separately separated is finished liquid crystal indicator of the present invention.
At this moment, cut off the 2nd substrate 2, remove part therebetween, promptly remove terminal area 14 part in opposite directions with the 1st substrate 1, each terminal area 14 is exposed by cutting off preset lines 8,8 places at 2 article the 2nd of 20 of adjacent liquid crystal indicators.At this moment and since the bonding force between the 2nd substrate 2 and the barrier 16 than the bonding force between the 2nd substrate 2 and the sealing gasket 3 a little less than, so be easy to peel off removing partly and bonding between the barrier 16 of the 2nd substrate, breakage can not take place in the 2nd substrate 2 or the 1st substrate 1 yet.
In addition, though what illustrate is the situation that forms connecting elements 15 and barrier 16 with identical materials simultaneously, but, also can or form them respectively, or under the situation of the liquid crystal indicator of the structure that connecting elements illustrated in figures 1 and 2 15 is not set, both can form barrier 16 with the insulativity material, also can be as shown in Figure 4, and the inner face of the 2nd substrate 2 between exist the middle layer 17 that constitutes by transparent organic material and form barrier 16, and need not form barrier 16 self with the material a little less than the bonding force.This transparent organic material, for example can use with color filter in color liquid crystal display arrangement on the dielectric film identical materials that forms.
Even if do like this, the bonding force between barrier 16 and the 2nd substrate 2, still than a little less than the bonding force between sealing gasket 3 and the 2nd substrate 2 many.For this reason, in final operation, cut off preset lines 7 places at the 1st shown in the with dashed lines in Fig. 4 and cut off the 1st substrate 1, cut off preset lines 8,8 places the 2nd and cut off the 2nd substrate 2, so that each liquid crystal indicator 20 is when separating, the 2nd of the 2nd substrate 2 cuts off the part 2a between the preset lines 8,8, and bonding being easy between the barrier 16 peel off, and can remove the 1st, the 2nd substrate 1,2 and can be damaged.
If adopt the said embodiments of the invention in top, because near the two end portions of the limit 3a that is provided with filling orifice 5 of sealing gasket 3, be provided with the weak barrier 16 of bonding force, so when injection in the space of using to each liquid crystal indicator is used for forming the liquid crystal material 22 of liquid crystal layer, because this barrier 16 is with the gap of two substrates 1,2 of the outside of plug for seal pad 3, so can prevent liquid crystal material invades in the gap between the adjacent liquid crystal indicator 20, particularly in the terminal area 14 by capillarity.
Therefore, when irradiation ultraviolet radiation on whole of substrate 1,2, owing on terminal area 14 grades, do not adhere to liquid crystal material 22, thus need not think hard especially making ultraviolet ray can not shine the outside of sealing gasket, or carry out special operation to remove the liquid crystal material after the sclerosis.
And, since the bonding force between the 2nd substrate 2 and the barrier 16 than the bonding force between the 2nd substrate 2 and the sealing gasket 3 a little less than, so cut off the 1st, the 2nd substrate 1,2 that constitutes by thin glass, when separating each liquid crystal indicator 20, can easily peel off the unwanted part of removing this substrate, can not make that the 1st, the 2nd substrate 1,2 is damaged and make liquid crystal indicator 20 become unacceptable product from barrier 16.
In addition, in the above-described embodiment, owing to can form connecting elements 15 and barrier 16 that the terminal 13 of the 2nd electrode 12 that is used for making the 2nd substrate top and the 1st substrate 1 top is electrically connected with the silk screen process that identical electrocondution slurry carries out simultaneously, so can not increase any operation ground formation barrier 16.
In addition, as conductive material,, be not defined in the charcoal slurry especially though implement with the charcoal slurry (trade name ェ ズ リ ォ-system) of black japan plumbing manufacturing, as long as have sufficient electric conductivity and can prevent advancing of liquid crystal, and be the material of bonding force a little less than than sealant, what material is all right, specifically, it also can be silver paste, though some is expensive for price, if use gold paste material or platinum slurry, then electric conductivity can be better.
In addition,, also can form, can increase operation although it is so with independent operation though form barrier 16 and connecting elements 15 simultaneously with silk screen process.
If form with independent operation, then the material of barrier 16 so long as bonding force than sealant a little less than, and can prevent the material of advancing of liquid crystal, what material is all right, the formation method also need not be a silk screen process.In addition, can also in the middle of exist the middle layer ground that constitutes by transparent organic material and substrate between form this barrier 16.
As mentioned above, if implement Liquid crystal disply device and its preparation method of the present invention, then when making liquid crystal indicator, can prevent that liquid crystal material from invading to unwanted part, use amount that can thrifty liquid crystal material, the liquid crystal material that particularly can prevent polymer dispersed formula liquid crystal or polymer network formula liquid crystal is attached on the terminal area of substrate, thereby can not become and can not be electrically connected.And when the cut-out substrate separated each liquid crystal indicator, substrate can be damaged, thereby will improve the rate that manufactures a finished product of liquid crystal indicator significantly.
Claims (16)
1. liquid crystal indicator, it possesses: two transparent substrates, these two substrates are engaged with interstitial sealing gasket between this substrate, be sealing into the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal in this space, and the filling orifice be used for injecting the liquid crystal material that forms above-mentioned liquid crystal layer is set on above-mentioned sealant
It is characterized in that: near the two end portions on the limit that the sealant filling orifice is set of the sealing gasket between above-mentioned two substrates, be arranged on and stop its barrier that spreads into when injecting above-mentioned liquid crystal material in the space of this filling orifice between two substrates, the bonding force between at least one side of this barrier and above-mentioned two substrates than the bonding force between above-mentioned sealant and this substrate a little less than.
2. liquid crystal indicator, it possesses: two transparent substrates that formed electrode on inner face in opposite directions respectively, these two substrates are engaged with interstitial sealing gasket between this substrate, by being sealing into the liquid crystal layer that polymer dispersed formula liquid crystal in this space or polymer network formula liquid crystal constitute, and the outside of the above-mentioned sealing gasket at least one side's who is positioned at above-mentioned two substrates inner face, be provided with and formed the terminal area that is used for making the electrode that on this substrate, forms and the outside terminal that is electrically connected, above-mentioned sealing gasket is provided with the filling orifice that is used for injecting the liquid crystal material that forms above-mentioned liquid crystal layer
It is characterized in that: near the two end portions on the limit that above-mentioned filling orifice is set of the sealing gasket between above-mentioned two substrates, be arranged on the barrier that stops this liquid crystal material in above-mentioned terminal area, to spread into when injecting above-mentioned liquid crystal material in the space of above-mentioned filling orifice between above-mentioned two substrates, bonding force between at least one side of this barrier and above-mentioned two substrates is a little less than the bonding force between above-mentioned sealing gasket and this substrate.
3. the described liquid crystal indicator of claim 1 is characterized in that: above-mentioned barrier is made of the material of bonding force a little less than than above-mentioned sealing gasket.
4. the described liquid crystal indicator of claim 2 is characterized in that: above-mentioned barrier is made of the material of bonding force a little less than than above-mentioned sealing gasket.
5. the described liquid crystal indicator of claim 1, it is characterized in that: above-mentioned barrier is formed by electrocondution slurry.
6. the described liquid crystal indicator of claim 2, it is characterized in that: above-mentioned barrier is formed by electrocondution slurry.
7. the described liquid crystal indicator of claim 1 is characterized in that: by between at least one side of above-mentioned barrier and above-mentioned two substrates, the middle layer that is made of transparent organic material is set, weakens the bonding force of above-mentioned barrier to this substrate.
8. the described liquid crystal indicator of claim 2 is characterized in that: by between at least one side of above-mentioned barrier and above-mentioned two substrates, the middle layer that is made of transparent organic material is set, weakens the bonding force of above-mentioned barrier to this substrate.
9. the manufacture method of a liquid crystal indicator is characterized in that comprising:
On a side's of two transparent substrates that formed electrode on the inner face in opposite directions respectively inner face, form the operation of the sealing gasket that is used for enclosing liquid crystal layer in the mode of the filling orifice of remaining liquid crystal material;
On a side of above-mentioned two substrates or the opposing party's inner face, with the conductive material of bonding force a little less than than above-mentioned sealing gasket, the outside at above-mentioned sealing gasket, the coupling arrangement that formation is electrically connected to the electrode that forms on two substrates, with when injecting liquid crystal material, stop the operation of the barrier that this liquid crystal material spreads in the part that is provided with above-mentioned coupling arrangement by the filling orifice of above-mentioned sealing gasket;
The above-mentioned sealing gasket of sandwich engages two substrates, interstitial operation between this substrate; And
Filling orifice on being arranged on above-mentioned sealing gasket injects in above-mentioned space after the liquid crystal material that the potpourri by liquid crystal and single polymers constitutes, the operation of the above-mentioned filling orifice of shutoff;
By to above-mentioned liquid crystal material irradiation ultraviolet radiation with above-mentioned single polymers polymerization materialization, form the operation of the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal.
10. the manufacture method of a liquid crystal indicator is characterized in that comprising:
In order to make a plurality of liquid crystal indicators simultaneously, on a side's of two transparent substrates inner face, form the operation of the sealing gasket that each liquid crystal indicator of being used for enclosing respectively liquid crystal layer uses in the mode of the filling orifice of remaining liquid crystal material;
On near the position corresponding two ends on a side of above-mentioned two substrates or the opposing party's inner face and the limit filling orifice that is provided with above-mentioned each sealing gasket, with the material of bonding force a little less than than above-mentioned sealing gasket, be formed on when injecting liquid crystal material by above-mentioned filling orifice, the barrier that stops this liquid crystal material between adjacent liquid crystal indicator, to spread into, the operation that the barrier that makes adjacent liquid crystal indicator use is continuous;
Above-mentioned each sealing gasket of sandwich engages above-mentioned two substrates, the operation in the space that each liquid crystal indicator of formation is used between this substrate;
Filling orifice on being arranged on above-mentioned sealing gasket injects in above-mentioned space after the liquid crystal material that the potpourri by liquid crystal and single polymers constitutes, the operation of the above-mentioned filling orifice of shutoff;
By to above-mentioned liquid crystal material irradiation ultraviolet radiation with above-mentioned single polymers polymerization materialization, form the operation of the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal; And
Cut off above-mentioned two substrates, the operation of separating each liquid crystal indicator at the position that has formed above-mentioned barrier.
11. the manufacture method of a liquid crystal indicator is characterized in that comprising:
In order to make a plurality of liquid crystal indicators simultaneously, on a side's of two transparent substrates inner face, form the operation of the sealing gasket that each liquid crystal indicator of being used for enclosing respectively liquid crystal layer uses in the mode of the filling orifice of remaining liquid crystal material;
On near the position corresponding two ends on a side of above-mentioned two substrates or the opposing party's inner face and the limit filling orifice that is provided with above-mentioned each sealing gasket, the middle layer that sandwich is made of transparent organic material is formed on when above-mentioned filling orifice injects liquid crystal material, the barrier that stops this liquid crystal material between adjacent liquid crystal indicator, to spread into, the operation that the barrier that makes adjacent liquid crystal indicator use is continuous;
Above-mentioned each sealing gasket of sandwich engages above-mentioned two substrates, the operation in the space that each liquid crystal indicator of formation is used between this substrate;
Filling orifice on being arranged on above-mentioned sealing gasket has injected in above-mentioned space after the liquid crystal material that the potpourri by liquid crystal and single polymers constitutes, the operation of the above-mentioned filling orifice of shutoff;
By to above-mentioned liquid crystal material irradiation ultraviolet radiation with above-mentioned single polymers polymerization materialization, form the operation of the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal; And
Cut off above-mentioned two substrates, the operation of separating each liquid crystal indicator at the position that has formed above-mentioned barrier.
12. the manufacture method of a liquid crystal indicator is characterized in that comprising:
In order to make a plurality of liquid crystal indicators simultaneously, on a side's of two transparent substrates that formed the electrode that each liquid crystal indicator uses on the inner face in opposite directions respectively inner face, form the operation of the sealing gasket that each liquid crystal indicator of being used for enclosing respectively liquid crystal layer uses in the mode of the filling orifice of remaining liquid crystal material;
On a side of above-mentioned two substrates or the opposing party's inner face, be formed on when the filling orifice of above-mentioned each sealing gasket injects liquid crystal material with the material of bonding force a little less than than above-mentioned sealing gasket, the barrier that stops this liquid crystal material between adjacent liquid crystal indicator, to spread into, the operation that the barrier that makes adjacent liquid crystal indicator use is continuous;
Above-mentioned each sealing gasket of sandwich engages above-mentioned two substrates, the operation in the space that each liquid crystal indicator of formation is used between this substrate;
Filling orifice on being arranged on above-mentioned sealing gasket has injected in above-mentioned space after the liquid crystal material that the potpourri by liquid crystal and single polymers constitutes, the operation of the above-mentioned filling orifice of shutoff;
By to above-mentioned liquid crystal material irradiation ultraviolet radiation with way with above-mentioned single polymers polymerization materialization, form the operation of the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal; And
Cut off above-mentioned two substrates, the operation of separating each liquid crystal indicator at the position that has formed above-mentioned barrier.
13. the manufacture method of a liquid crystal indicator is characterized in that comprising:
In order to make a plurality of liquid crystal indicators simultaneously, on a side's of two transparent substrates that formed the electrode that each liquid crystal indicator uses on the inner face in opposite directions respectively inner face, form the operation of the sealing gasket that each liquid crystal indicator of being used for enclosing respectively liquid crystal layer uses in the mode of the filling orifice of remaining liquid crystal material;
On near the position corresponding two ends on a side of above-mentioned two substrates or the opposing party's inner face and the limit filling orifice that is provided with above-mentioned each sealing gasket, the middle layer that sandwich is made of transparent organic material is formed on when above-mentioned filling orifice injects liquid crystal material, the barrier that stops this liquid crystal material between adjacent liquid crystal indicator, to spread into, the operation that the barrier that makes adjacent liquid crystal indicator use is continuous;
Above-mentioned two substrates are engaged, the operation in the space that each liquid crystal indicator of formation is used between this substrate;
Filling orifice on being arranged on above-mentioned sealing gasket has injected in above-mentioned space after the liquid crystal material that the potpourri by liquid crystal and single polymers constitutes, the operation of the above-mentioned filling orifice of shutoff;
By to above-mentioned liquid crystal material irradiation ultraviolet radiation with above-mentioned single polymers polymerization materialization, form the operation of the liquid crystal layer that constitutes by polymer dispersed formula liquid crystal or polymer network formula liquid crystal;
Cut off above-mentioned two substrates, the operation of separating each liquid crystal indicator at the position that has formed above-mentioned barrier.
14. the manufacture method of the described liquid crystal indicator of claim 9 is characterized in that: in the operation that forms above-mentioned coupling arrangement and above-mentioned barrier, form this coupling arrangement and barrier by using electrocondution slurry to print.
15. the manufacture method of the described liquid crystal indicator of claim 10 is characterized in that: in the operation that forms above-mentioned barrier, form this barrier by using electrocondution slurry to print.
16. the manufacture method of the described liquid crystal indicator of claim 12 is characterized in that: in the operation that forms above-mentioned barrier, form this barrier by using electrocondution slurry to print.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP156399 | 1999-01-07 | ||
| JP1563/1999 | 1999-01-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1293770A CN1293770A (en) | 2001-05-02 |
| CN1190694C true CN1190694C (en) | 2005-02-23 |
Family
ID=11505002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00800014XA Expired - Fee Related CN1190694C (en) | 1999-01-07 | 2000-01-07 | LCD device and method of manuficture thereof |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6490022B1 (en) |
| EP (1) | EP1063563B1 (en) |
| KR (1) | KR20010088274A (en) |
| CN (1) | CN1190694C (en) |
| DE (1) | DE60002129T2 (en) |
| WO (1) | WO2000041032A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100641631B1 (en) * | 2000-02-01 | 2006-11-02 | 엘지.필립스 엘시디 주식회사 | bistable liquid crystal cell and Method for fabricating the same |
| KR100592381B1 (en) * | 2000-06-12 | 2006-06-22 | 엘지.필립스 엘시디 주식회사 | Liquid crystal display device and manufacturing method thereof |
| KR100685951B1 (en) * | 2002-03-06 | 2007-02-23 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display Device and Method of manufacturing the same |
| JP4193438B2 (en) | 2002-07-30 | 2008-12-10 | ソニー株式会社 | Manufacturing method of semiconductor device |
| TWI263834B (en) * | 2005-04-29 | 2006-10-11 | Au Optronics Corp | Liquid crystal display panel |
| JP4933892B2 (en) * | 2006-12-28 | 2012-05-16 | シチズンファインテックミヨタ株式会社 | Manufacturing method of liquid crystal display element |
| US7612858B2 (en) * | 2007-01-02 | 2009-11-03 | Samsung Mobile Display Co., Ltd. | Source plate for liquid crystal displays, and liquid crystal display device having source plate |
| CN105161506B (en) * | 2015-10-29 | 2018-02-27 | 京东方科技集团股份有限公司 | A kind of array base palte and preparation method thereof, display device |
| JP6740610B2 (en) * | 2015-12-22 | 2020-08-19 | 凸版印刷株式会社 | Liquid crystal display |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837527A (en) | 1981-08-31 | 1983-03-04 | Sumitomo Electric Ind Ltd | Photodetector |
| US4640583A (en) * | 1983-07-22 | 1987-02-03 | Kabushiki Kaisha Seiko Epson | Display panel having an inner and an outer seal and process for the production thereof |
| JPH0264523A (en) | 1988-08-31 | 1990-03-05 | Casio Comput Co Ltd | Manufacture of liquid crystal cell |
| JPH0268525A (en) | 1988-09-05 | 1990-03-08 | Hitachi Ltd | Liquid crystal display device and its production |
| JPH02127613A (en) | 1988-11-08 | 1990-05-16 | Seimi Chem Kk | Manufacture of liquid crystal display element and empty cell member for manufacture thereof |
| US5598286A (en) * | 1993-03-19 | 1997-01-28 | Rohm Co. Ltd. | Liquid crystal display device provided with liquid crystal elevation stoppers |
| JPH08194198A (en) | 1995-01-17 | 1996-07-30 | Nippondenso Co Ltd | Production of liquid crystal display element |
| JPH1144886A (en) | 1997-07-24 | 1999-02-16 | Seiko Instr Inc | Liquid crystal display device, production of liquid crystal display device and production of liquid crystal cell |
-
2000
- 2000-01-07 WO PCT/JP2000/000049 patent/WO2000041032A1/en active IP Right Grant
- 2000-01-07 DE DE60002129T patent/DE60002129T2/en not_active Expired - Fee Related
- 2000-01-07 KR KR1020007008637A patent/KR20010088274A/en not_active Application Discontinuation
- 2000-01-07 EP EP00900150A patent/EP1063563B1/en not_active Expired - Lifetime
- 2000-01-07 CN CNB00800014XA patent/CN1190694C/en not_active Expired - Fee Related
- 2000-01-07 US US09/623,415 patent/US6490022B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE60002129T2 (en) | 2003-12-24 |
| US6490022B1 (en) | 2002-12-03 |
| EP1063563A1 (en) | 2000-12-27 |
| KR20010088274A (en) | 2001-09-26 |
| EP1063563B1 (en) | 2003-04-16 |
| EP1063563A4 (en) | 2001-04-18 |
| WO2000041032A1 (en) | 2000-07-13 |
| CN1293770A (en) | 2001-05-02 |
| DE60002129D1 (en) | 2003-05-22 |
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